Refactored the `DummyLlmService` to `DummyIntentService` across the codebase for clarity and consistency. Updated variable names, method calls, and documentation to align with this change. This improves code readability and better reflects the service's purpose.
Added TypeScript type definitions in `lib.d.ts` to improve developer experience and ensure type safety. Updated `package.json` to include the new "types" field and modified `.gitignore` to exclude additional unwanted files.